6 papers · 1 filter
Detection of Hard X-Rays from the Compton-Thick Seyfert 2 Galaxy NGC 2273 with Suzaku
H. Awaki, Y. Terashima, Y. Higaki +1
We have obtained a broad-band spectrum of the Compton-thick Seyfert 2 galaxy NGC 2273 with Suzaku. The spectrum reveals the first detection of hard X-rays above ~10 keV from NGC 22…
Chandra Snapshot Observations of LINERs with a Compact Radio Core
Yuichi Terashima, Andrew S. Wilson
The results of Chandra snapshot observations of 11 LINERs (Low-Ionization Nuclear Emission-line Regions), three low-luminosity Seyfert galaxies, and one HII-LINER transition object…
Ultraluminous X-ray Sources in M51
Yuichi Terashima, Andrew S. Wilson
We present the results of Chandra observations of off-nuclear X-ray sources in the spiral galaxy M51 (NGC 5194). 113 X-ray sources have been detected in the field of view and 84 am…
Fe K Emission Lines in Low-luminosity AGNs
Yuichi Terashima, Naoko Iyomoto, Luis C. Ho +1
We present the results of a systematic analysis of Fe K emission lines in low-luminosity AGNs (LLAGNs) observed with ASCA. We used a sample of LLAGNs with small intrinsic absorptio…
Cygnus A
A. S. Wilson, K. A. Arnaud, D. A. Smith +2
We report Chandra imaging-spectroscopy and RXTE spectroscopy of the nearby, powerful radio galaxy Cygnus A. Various aspects of the results are discussed, including the X-ray proper…
Do Normal Galaxies Host a Black Hole? The High Energy Perspective
Y. Terashima
We review ASCA results on a search for low luminosity active nuclei at the center of nearby normal galaxies. More than a dozen low-luminosity AGN have been discovered with 2-10 keV…